Ahmedabad : On Wednesday, Breakthrough Listen, the $100m global project looking for extraterrestrials said it had detected 15 radio bursts from a dwarf galaxy 3 billion light years away from the Earth. The finding has sparked a new interest among scientists across the world. Vishal Gajjar, a post-doctoral researchers at University of California, Berkeley, who detected the radio bursts, shared his views through emails
From how the Breakthrough Listen is pushing the frontiers to his own journey from a small town (Botad) in Gujarat to Berkeley, Gajjar speaks about Extraterrestrials and the new finding.
Q: How significant is this detection in the context of Breakthrough Listen, a project looking for intelligent life in the universe?
A: Breakthrough Listen is pushing the boundary in terms of achieving the highest quality instruments at a range of frequencies. This discovery demonstrates the capabilities of our backend as we detected these pulses at the highest radio frequency with the widest bandwidth ever attempted. Such a high-quality instrument can certainly help us explore various ranges of parameter space to search for ET.
Q: There are speculations that these bursts could be energy sources powering spacecraft from other intelligent civilizations… how much should a layperson believe this?
A: I think it’s less likely to be originated by any intelligent civilization because we see these types of sources all over the Sky. About the extraterrestrials (ETs) powering spacecraft, a similar argument can be raised that unless a good fraction of ETs are using similar techniques, which might be a long stretch, it’s unlikely that all FRBs are from ETs. Having said that, I think if ET would like to communicate with us, mimicking an FRB type signal and modulating it with an artificial message, it would not be difficult to find them using similar techniques we have used here to find these bursts.
Q: Is this the biggest find for you, personally, after having joined the project?
A: Indeed, this is one of the significant findings I personally ever had. Although we did not discover a new source, having detected FRB 121102 at the highest frequency opens up a lot of possibilities of scrutinizing its origin models. In addition, we sort of sound an alarm for the entire FRB community that the source is in a new active state which will motivate various other observations from several different telescopes.
Q: Your journey to the $100m project, and how do you see your future?
A: I was born in a small town in Gujarat (Botad) and did my schooling there. I completed Engineering from the Shantilal Shah Engineering College (Bhavnagar) in Electronics and Communication. I was always interested in astronomy and the question of life in the Universe. So, I decided to pursue my career as a scientist and join National Center for Radio Astrophysics (NCRA-TIFR, Pune) for my Ph.D. I just started working at the University of California, Berkeley in March 2016 when the project was just announced and started working with the team to search for these types of signals.
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